System and method for controlling noise in real-time audio signals
US8214066B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Dec 31, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/341
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system for processing a digital audio signal that includes a plurality of samples is disclosed. The system comprises a magnitude determination module, a windowing module, a summing module and a comparison module. The magnitude determination module determines a magnitude of each of the plurality of samples of the digital audio signal. The windowing module selects a subset of the plurality of samples, which are summed by the summing module to obtain a subset sum. The comparison module compares the subset sum to a threshold, and generates a silence indicating signal based on the comparison of the subset sum to the threshold. The silence indicating signal is indicative of a period of silence in the digital audio signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.